多固体废物协同作用的红泥基复合混凝土材料在直角试验下的机制和CO2排放分析
Lili Cheng1, Daiyu Zhou2, Qiwan Zhang3
1Department of Civil Engineering, Guiyang Institute of Information Science and Technology, Guiyang, 550025, Guizhou, China. Lilycheng1231@163.com.
Scientific reports
|January 24, 2025
概括
这项研究开发了用于废物利用的多固体废物协同作用的红泥基复合混凝土材料 (MS-RMCM). 最佳组合实现了25.13 MPa的压力强度,证明了可持续的建筑材料与减少碳排放.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 土木工程 土木工程是指土木工程.
背景情况:
- 红色泥 (RM) 由于大量储存和低利用率,造成了大量废物处理的挑战.
- 开发有效的RM利用方法对于环境可持续性和资源管理至关重要.
研究的目的:
- 准备和研究多固体废物协同作用的基于RM的复合混凝土材料 (MS-RMCM).
- 优化MS-RMCM的组成,以提高机械性能,特别是压力强度.
- 分析开发材料对环境的影响,重点关注碳排放.
主要方法:
- 使用红色泥,飞灰,烟和生制备MS-RMCM.
- 坐标实验设计系统地研究组件对机械性能的影响.
- 用能量分散光谱扫描电子显微镜 (SEM-EDS) 进行微观结构分析.
- 生命周期评估 (LCA) 用于评估碳排放.
主要成果:
- 坐标测试确定了作为28天压力强度上最有影响力的成分,其次是二氧化烟雾,然后是飞灰.
- 最佳成分 (A2B3C4) 的最大压力强度为25.13 MPa,红泥含量为53%.
- SEM-EDS分析证实,飞灰和烟通过波佐兰活性和微填充增强强度,而生促进水化和紧性.
- 生命周期评估显示MS-RMCM的碳排放量为273.01公斤/,单位压力强度排放因子为10.86公斤/MPa.
结论:
- MS-RMCM为红泥利用提供了一个可行的解决方案,将废物转化为有价值的建筑材料.
- 机械性能和MS-RMCM的环境效益受到其构成材料,特别是的比例的显著影响.
- 开发的MS-RMCM显示了减少建筑行业二氧化碳排放的巨大潜力,与可持续发展目标保持一致.
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